diff options
| author | Eric Dumazet <edumazet@google.com> | 2013-08-28 18:10:43 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-30 17:48:04 -0400 |
| commit | 702821f4ea6f68db18aa1de7d8ed62c6ba586a64 (patch) | |
| tree | a0e3a4ba9577812f220224d7e6380146c193dc2e /net/ipv4/tcp_offload.c | |
| parent | 25ad6117e73656071b38fd19fa67ae325471c758 (diff) | |
net: revert 8728c544a9c ("net: dev_pick_tx() fix")
commit 8728c544a9cbdc ("net: dev_pick_tx() fix") and commit
b6fe83e9525a ("bonding: refine IFF_XMIT_DST_RELEASE capability")
are quite incompatible : Queue selection is disabled because skb
dst was dropped before entering bonding device.
This causes major performance regression, mainly because TCP packets
for a given flow can be sent to multiple queues.
This is particularly visible when using the new FQ packet scheduler
with MQ + FQ setup on the slaves.
We can safely revert the first commit now that 416186fbf8c5b
("net: Split core bits of netdev_pick_tx into __netdev_pick_tx")
properly caps the queue_index.
Reported-by: Xi Wang <xii@google.com>
Diagnosed-by: Xi Wang <xii@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Denys Fedorysychenko <nuclearcat@nuclearcat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_offload.c')
0 files changed, 0 insertions, 0 deletions